Flexible SUNLU Filament Spool Adapter V2.0 (73mm to 51mm)

The SUNLU filament spools (~73mm center hole) have slightly different diameters on their left and right side.
This makes adapters with fixed diameter to fit very tight (hard to remove again) or too loose, so they can slip out while printing.

The flexible design of this adapter allows a good fit of the adapter on any side of the spool, as it compensates small variations in diameter.
Also removal after usage is fairly easy.

Version 2 has a tilted slot for smooth rolling (reduced noise) and needs less material.

As I have designed a number of spool adapters for various inner spool diameters, I have added the spool adapter sizes as embossed text on the inner face of the spool adapter.
(only included as stl-file)

Printed with 
 - SUNLU PETG on a MK3S+ with MMU2S (single color only)
 - no supports needed
 - brim is optional and might not be required